Ha-3-class submarine

	Japanese submarine Ha-3, in August 1911
Class overview
Name	Ha-3 class
Builders	Vickers, Barrow-in-Furness, UK
Operators	Imperial Japanese Navy
Preceded by	Ha-1 class
Succeeded by	Ha-7 class
In commission	1911–1929
Completed	3
Retired	3
General characteristics
Type	Submarine
Displacement	291 long tons (296 t) surfaced; 326 long tons (331 t) submerged;
Length	43.3 m (142 ft 1 in)
Beam	4.14 m (13 ft 7 in)
Draft	3.43 m (11 ft 3 in)
Installed power	600 hp (450 kW) (gasoline engines); 300 hp (220 kW) (electric motors);
Propulsion	Gasoline engines; Electric motors; 1 shaft;
Speed	12 knots (22 km/h; 14 mph) surfaced; 7 knots (13 km/h; 8.1 mph) submerged;
Range	660 nmi (1,220 km; 760 mi) at 12 knots (surfaced); 60 nmi (110 km; 69 mi) at 4 knots (7.4 km/h; 4.6 mph) (submerged);
Test depth	30.5 m (100 ft)
Complement	26 officers and enlisted
Armament	2 × 18 in (460 mm) bow torpedo tubes (4 × torpedoes); 1 × machine gun;

The Ha-3-class submarine (波三型潜水艦, Ha-san-gata sensuikan) was an early class of submarines of the Imperial Japanese Navy.

Background

Along with placing orders with Vickers at Barrow-in-Furness in the UK for two British C-class submarines, which were commissioned into the Imperial Japanese Navy as the Ha-1 class, the Japanese government ordered another three vessels, which were received as knock-down kits. These kits were assembled at the Kure Naval Arsenal.^[1]

Design

Physically almost identical to the Ha-1 class, the three vessels assembled in Japan incorporated a number of improvements, including extended bow for improved seaworthiness, improved rudder for surface handling, and an increase in the size of the bridge and conning tower.

Ships in class

Japanese submarine Ha-3 (波号第三潜水艦, Ha-go Dai-san sensuikan), laid down 1 August 1910; launched 5 March 1911; commissioned 12 August 1911 as Submersible No.10; reclassified as 2nd class submersible on 4 August 1916, reclassified as 3rd class submarine on 1 April 1919; renamed Ha-3 on 15 June 1923, decommissioned on 1 December 1929.^[2]
Japanese submarine Ha-4 (波号第四潜水艦, Ha-go Dai-yon sensuikan), laid down 1 August 1910; launched 13 March 1911; commissioned 26 August 1911 as Submersible No.11; reclassified as 2nd class submersible on 4 August 1916, reclassified as 3rd class submarine on 1 April 1919; renamed Ha-4 on 15 June 1923; decommissioned on 1 December 1929.^[2]
Japanese submarine Ha-5 (波号第五潜水艦, Ha-go Dai-go sensuikan), laid down 1 August 1910; launched 27 March 1911; commissioned 3 August 1911 as Submersible No.12; reclassified as 2nd class submersible on 4 August 1916, reclassified as 3rd class submarine on 1 April 1919; renamed Ha-5 on 15 June 1923; decommissioned on 1 December 1929.^[2]

Notes

^ Chesneau, Roger (1985). Conway's All the World's Fighting Ships 1906–1921. Naval Institute Press. p. 246. ISBN 0-87021-907-3.
^ ^a ^b ^c Nishida, Materials of the Imperial Japanese Navy

References

Chesneau, Roger (1985). Conway's All the World's Fighting Ships 1906–1921. Naval Institute Press. ISBN 0-87021-907-3.
Howarth, Stephen (1983). The Fighting Ships of the Rising Sun: The Drama of the Imperial Japanese Navy, 1895-1945. Atheneum. ISBN 0-689-11402-8.
Jentsura, Hansgeorg (1976). Warships of the Imperial Japanese Navy, 1869-1945. Annapolis, MD: Naval Institute Press. ISBN 0-87021-893-X.
Schencking, J. Charles (2005). Making Waves: Politics, Propaganda, And The Emergence Of The Imperial Japanese Navy, 1868-1922. Stanford University Press. ISBN 0-8047-4977-9.

External links

Nishida, Hiroshi. "Materials of IJN". Imperial Japanese Navy.

[1] Chesneau, Roger (1985). Conway's All the World's Fighting Ships 1906–1921. Naval Institute Press. p. 246. ISBN 0-87021-907-3.

[Nishida-2] Nishida, Materials of the Imperial Japanese Navy

[1]

[2]